Calculations of photoabsorption by atoms using a linear response method

Abstract
We have made extensive calculations of photoabsorption by all neutral atoms from hydrogen to lawrencium for photon energies up to one kilovolt. Our method was the relativistic time-dependent local density approximation with the usual configuration average for open shells. The most important collective effects are included through an induced field. Expected features such as resonant photoemission and autionization are seen. Examples of the calculations will be shown. The computer program used is available from the Computer Physics Communications Program Library.